The truth is, even if you want to be done because of what someone told you she said... she's not done with you, yet...
If you think that walking away from her will be that simple and "easy", that is a choice you can make and no one will judge you.
But... if you want to survive this with at least SOME hope that you can become a better man that only a fool would leave... then this could very well be that chance you are willing to take...
You took the risk when you married her... why not take this risk, now?